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2. Towards sustainable recycling of epoxy-based polymers : approaches and challenges of epoxy biodegradation

Author

Klose, Leon, Meyer-Heydecke, Neele, Wongwattanarat, Sasipa, Chow, Jennifer, Pérez-García, Pablo, Carré, Camille, Streit, Wolfgang R., Antranikian, Garabed, Malvis Romero, Ana, Liese, Andreas, Klose, Leon, Meyer-Heydecke, Neele, Wongwattanarat, Sasipa, Chow, Jennifer, Pérez-García, Pablo, Carré, Camille, Streit, Wolfgang R., Antranikian, Garabed, Malvis Romero, Ana, and Liese, Andreas

Abstract

Epoxy resins are highly valued for their remarkable mechanical and chemical properties and are extensively used in various applications such as coatings, adhesives, and fiber-reinforced composites in lightweight construction. Composites are especially important for the development and implementation of sustainable technologies such as wind power, energy-efficient aircrafts, and electric cars. Despite their advantages, their non-biodegradability raises challenges for the recycling of polymer and composites in particular. Conventional methods employed for epoxy recycling are characterized by their high energy consumption and the utilization of toxic chemicals, rendering them rather unsustainable. Recent progress has been made in the field of plastic biodegradation, which is considered more sustainable than energy-intensive mechanical or thermal recycling methods. However, the current successful approaches in plastic biodegradation are predominantly focused on polyester-based polymers, leaving more recalcitrant plastics underrepresented in this area of research. Epoxy polymers, characterized by their strong cross-linking and predominantly ether-based backbone, exhibit a highly rigid and durable structure, placing them within this category. Therefore, the objective of this review paper is to examine the various approaches that have been employed for the biodegradation of epoxy so far. Additionally, the paper sheds light on the analytical techniques utilized in the development of these recycling methods. Moreover, the review addresses the challenges and opportunities entailed in epoxy recycling through bio-based approaches., Office of Naval Research Global

Published
2023
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6. Myocardial injury in coronavirus disease 19 (Covid-19): main pathophysiological mechanisms and clinical utility of cardiac biomarkers

Author

Kamel, Saïd, Raynor, Alexandre, Zozor, Samuel, Lacape, Geneviève, Brunel, Valéry, Nivet-Antoine, Valérie, Collin-Chavagnac, Delphine, Peoc’h, Katell, Cohen, Ariel, Lassoued, Amin Ben, Chévrier, Marc, Alemann, Mathieu, Lessinger, Jean-Marc, Bérard, Annie, Sapin, Vincent, Beauvieux, Marie-Christine, Levy, Pacifique, Lehmann, Sylvain, Mécanismes physiopathologiques et conséquences des calcifications vasculaires - UR UPJV 7517 (MP3CV), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie, AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), CHU Bordeaux [Bordeaux], CHU Rouen, Normandie Université (NU), Innovations thérapeutiques en hémostase = Innovative Therapies in Haemostasis (IThEM - U1140), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), CHU Necker - Enfants Malades [AP-HP], Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), CHU Tenon [AP-HP], Thrombose, atherothrombose et pharmacologie appliquée, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital de la Timone [CHU - APHM] (TIMONE), Les Hôpitaux Universitaires de Strasbourg (HUS), CHU Clermont-Ferrand, Génétique, Reproduction et Développement (GReD), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Centre de résonance magnétique des systèmes biologiques (CRMSB), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Cellules Souches, Plasticité Cellulaire, Médecine Régénératrice et Immunothérapies (IRMB), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), and Pour le Groupe de Travail de la SFBC « Marqueurs Biochimiques de la pathologie Covid-19 »: Isabelle Aimone-Gastin, Stéphanie Alcaraz, Stéphane Allouche, Malika Balduyck, Françoise Barbé, Yann Barguil, Jean-Philippe Bastard, Jean-Louis Beaudeux, Marie-Christine Beauvieux, Amin Ben Lassoued, Isabelle Benz de Bretagne, Annie Bérard, Laurent Bermont, Edith Bigot-Corbel, Muriel Bost, Valery Bourbonneux, Valery Brunel, Jean-Luc Carré, Camille Chenevier-Gobeaux, Marc Chevrier, Giulia Chinetti, Delphine Collin-Chavagnac, Hervé Delacour, Delphine Delevallée, François Desroys du Roure, Patrice Faure, Jean-Philippe Galhaud, Anne Galinier, Thierry Hauet, Carine Helj, Emilie Jolly, Said Kamel, Sylvain Lehmann, Aline Leroy, Jean-Marc Lessenger, Pacifique Levy, Anne-Marie Lorec-Penet, Samir Mesli, Dagui Monnet, Caroline Moreau, Laurence Mouly, Valérie Nivet-Antoine, Nathalie Oueidat, Mathieu Pecquet, Katell Peoc’h, Laurence Piéroni, Carole Poupon, Martine Roubille, Benoit Rucheton, Medhi Sakka, Vincent Sapin, Vincent Saunier, Florian Scherrer, François Schmitt, Sabine Zaepfel, Samuel Zozor

Subjects
myocardite, peptides natriurétiques, SARS-CoV-2, myocarde, [SDV]Life Sciences [q-bio], troponine, Covid-19
Abstract

International audience; Pour citer cet article : Atteintes myocardiques au cours de la maladie à coronavirus 19 (Covid-19) : principaux mécanismes physiopathologiques et utilité clinique des biomarqueurs cardiaques.

Published
2021

7. Atteintes myocardiques au cours de la maladie à coronavirus 19 (Covid-19) : principaux mécanismes physiopathologiques et utilité clinique des biomarqueurs cardiaques

Author

Kamel, Saïd, Raynor, Alexandre, Zozor, Samuel, Lacape, Geneviève, Brunel, Valéry, Nivet-Antoine, Valérie, Collin-Chavagnac, Delphine, Peoc’h, Katell, Cohen, Ariel, Lassoued, Amin Ben, Chévrier, Marc, Alemann, Mathieu, Lessinger, Jean-Marc, Bérard, Annie, Sapin, Vincent, Beauvieux, Marie-Christine, Levy, Pacifique, Lehmann, Sylvain, Mécanismes physiopathologiques et conséquences des calcifications vasculaires - UR UPJV 7517 (MP3CV), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie, AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), CHU Bordeaux [Bordeaux], Université de Bordeaux (UB), Laboratoire de biochimie générale [Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Innovations thérapeutiques en hémostase (IThEM - U1140), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPC), CHU Necker - Enfants Malades [AP-HP], Cardiovasculaire, métabolisme, diabétologie et nutrition (CarMeN), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Hospices Civils de Lyon (HCL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), CHU Saint-Antoine [AP-HP], Thrombose, atherothrombose et pharmacologie appliquée, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Tenon [AP-HP], Hôpital de la Timone [CHU - APHM] (TIMONE), Hospices Civils de Lyon (HCL), Nouvel Hôpital Civil de Strasbourg, Les Hôpitaux Universitaires de Strasbourg (HUS), Génétique, Reproduction et Développement (GReD), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Centre de résonance magnétique des systèmes biologiques (CRMSB), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Sorbonne Université (SU), Pour le Groupe de Travail de la SFBC « Marqueurs Biochimiques de la pathologie Covid-19 »: Isabelle Aimone-Gastin, Stéphanie Alcaraz, Stéphane Allouche, Malika Balduyck, Françoise Barbé, Yann Barguil, Jean-Philippe Bastard, Jean-Louis Beaudeux, Marie-Christine Beauvieux, Amin Ben Lassoued, Isabelle Benz de Bretagne, Annie Bérard, Laurent Bermont, Edith Bigot-Corbel, Muriel Bost, Valery Bourbonneux, Valery Brunel, Jean-Luc Carré, Camille Chenevier-Gobeaux, Marc Chevrier, Giulia Chinetti, Delphine Collin-Chavagnac, Hervé Delacour, Delphine Delevallée, François Desroys du Roure, Patrice Faure, Jean-Philippe Galhaud, Anne Galinier, Thierry Hauet, Carine Helj, Emilie Jolly, Said Kamel, Sylvain Lehmann, Aline Leroy, Jean-Marc Lessenger, Pacifique Levy, Anne-Marie Lorec-Penet, Samir Mesli, Dagui Monnet, Caroline Moreau, Laurence Mouly, Valérie Nivet-Antoine, Nathalie Oueidat, Mathieu Pecquet, Katell Peoc’h, Laurence Piéroni, Carole Poupon, Martine Roubille, Benoit Rucheton, Medhi Sakka, Vincent Sapin, Vincent Saunier, Florian Scherrer, François Schmitt, Sabine Zaepfel, Samuel Zozor, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), CHU Clermont-Ferrand, Cellules Souches, Plasticité Cellulaire, Médecine Régénératrice et Immunothérapies (IRMB), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), VIAUD, Karine, Normandie Université (NU)-Centre hospitalier universitaire de Rouen, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), and Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)

Subjects
Adult, Male, medicine.medical_specialty, Myocarditis, [SDV]Life Sciences [q-bio], Myocardial Infarction, troponine, Disease, Systemic inflammation, Predictive Value of Tests, Internal medicine, myocarde, Coagulopathy, medicine, myocardium, Humans, Hospital Mortality, Myocardial infarction, Pandemics, Aged, Aged, 80 and over, Endocarditis, biology, business.industry, SARS-CoV-2, troponin, Heart, General Medicine, Middle Aged, Prognosis, medicine.disease, Troponin, Pathophysiology, 3. Good health, myocardite, [SDV] Life Sciences [q-bio], peptides natriurétiques, biology.protein, Cardiology, Female, France, Myocardial infarction diagnosis, medicine.symptom, myocarditis, business, Covid-19, natriuretic peptides, Biomarkers
Abstract

International audience; Covid-19 is responsible for myocardial injury in many infected patients, which is associated with severe disease and critical illness. The mechanisms by which SARS-CoV-2 may cause myocardial damage involve direct effect of the virus in cardiac cells and indirect effect due to the clinical consequences of Covid-19. Cardiomyocytes are well known to express Angiotensin-Converting Enzyme-2 receptors (ACE-2) to facilitate the virus cell entry, which could explain the occurrence of myocarditis, functional alterations in the myocardium, and more rarely, myocardial infarction. Myocardial injury may also be secondary to systemic inflammation or coagulopathy due to complicated Covid-19. The existence of a cardio-intestinal axis with alteration of tryptophan metabolism in the small bowel leading first to colitis and then to systemic inflammation has also been evoked to explain the myocardial injury. Morphological and metabolic disturbances of the heart during the Covid-19 are associated with elevated concentrations of cardiac blood biomarkers, mainly troponins and natriuretic peptides. The determination of these biomarkers has proven to be very useful for diagnosis, prognosis, and risk stratification. Indeed, recent data demonstrated that about 20% of infected patients admitted to the hospital have elevated troponin or BNP levels, and Covid-19 patients with elevated troponin concentrations beyond the diagnostic threshold (99th percentile) were associated with a higher risk of in-hospital mortality. In conclusion, after more than a year of a unique global pandemic, it is now clearly established that myocardial injury during Covid-19 is frequent and strongly contributes to the severity of the disease. Cardiac alterations secondary to direct infection of cardiac cells by SARS-CoV-2 or to the clinical consequences of Covid-19 are associated with elevated levels of cardiac biomarkers in blood, whose measurement is crucial in clinical decision making.

Published
2021

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